3
6
9
7
4
7
3
4
6
9
1
8
4
9
2
6
3
7
5
8
3
1
4
5
7
9
6
7
6
4
9
2
8
5
9
2
7
6
1
8
4
3
6
3
4
7
1
9
7
3
6
7
6
3
8
1
9
This Sudoku Puzzle has 24 steps and it is solved using Full House, Naked Single techniques.
Naked Single
Explanation
Full House
Explanation
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